Fairfield, CA 94534 solar market data
Updated April 23, 2026 By The SolarDNA Data Team
Fairfield 94534 has 4,270 solar installations at a median installed cost of $4.43/W, installations up 7.2% over the trailing twelve months, and a Market Score of 49 — higher than 86% of U.S. zip markets.
Versus California
How 94534 compares with the state
Installed cost
$0.17/W above
state median $4.26/W
Market score
49 vs 53
California scores 53
Share of state installs
0.19%
of 2.3M tracked statewide
Battery attach
13.0%
state 12.7%
Statewide momentum
▲ 1.1%
residential solar added in California, 12 months through Jul 2026
Statewide market
2.3M systems
30.9% of homes · utility-reported through Jul 2026
Next-12-month outlook: 235–287 installs (midpoint 261)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±10% band. Not a forecast of permits or policy.
Growth & pricing
94534 by year
252 installs in the trailing twelve months vs 235 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 94534
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 773 | 49 | 6.28 | $4.44 |
| 2 | TESLA | 575 | 15 | 8.15 | $5.12 |
| 3 | AMBROSE SOLAR | 314 | 26 | 8.31 | $4.48 |
| 4 | SUNPOWER | 198 | 0 | 11.11 | $4.50 |
| 5 | V3 ELECTRIC | 113 | 5 | 6.24 | $3.89 |
| 6 | CITADEL ROOFING AND SOLAR | 99 | 13 | 6.46 | $3.17 |
| 7 | FREEDOM FOREVER | 98 | 16 | 6.33 | $4.89 |
| 8 | PETERSENDEAN | 88 | 0 | 6.57 | $3.73 |
| 9 | FUTURE ENERGY SAVERS | 87 | 3 | 4.82 | $6.27 |
| 10 | NORTH VALLEY | 68 | 8 | 7.25 | $5.55 |
| 11 | ESP CONTRACTING | 63 | 1 | 6.53 | $4.06 |
| 12 | BRIGHT OPS | 59 | 7 | 6.22 | $4.53 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 94585 Suisun City | 7.8 km | 2,565 | $4.72 | 36 |
| 94533 Fairfield | 8.8 km | 7,375 | $4.44 | 44 |
| 94503 American Canyon | 13.7 km | 1,946 | $4.34 | 45 |
| 94559 Napa | 14.4 km | 1,511 | $4.57 | 47 |
| 94589 Vallejo | 16.0 km | 1,463 | $5.10 | 41 |
| 94535 Travis Afb | 16.5 km | 124 | $4.10 | 40 |
Same city
Other zips in Fairfield
Equipment
What gets installed in 94534
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA17.1%
SUNPOWER14.7%
CSI SOLAR6.8%
LONGI GREEN ENERGY TECHNOLOGY5.9%
REC SOLAR5.6%
Inverters
ENPHASE ENERGY36.7%
SOLAREDGE27.8%
SUNPOWER8.1%
TESLA6.6%
FRONIUS USA4.2%
Frequently asked
Quick answers about 94534
How many solar installations are there in 94534?
SolarDNA counts 4,270 active solar installations in Fairfield 94534, 4,214 of them residential, with data through April 23, 2026.
How much does solar cost in 94534?
The median residential system in 94534 cost $4.43 per watt over the trailing twelve months, $0.17/W above the California median.
Is solar growing in 94534?
Installations in 94534 are up 7.2%: 252 in the trailing twelve months versus 235 before.
Who installs solar in 94534?
SUNRUN, TESLA, AMBROSE SOLAR lead the 381 installers with systems in 94534. The full comp set is above.
Is 94534 a good market for solar sales?
94534 scores 49 out of 100 (Great, higher than 86% of U.S. zip markets).